Trying to get Bass into the passenger compartment of my 1960 Cadillac. Need help!

TheMan90241

Junior Member
I'm working on my 1960 Cadillac installation and my most important goal is to prevent too many holes from being cut and screwed into the original metal framing. With that being said, I built a console to mount my aftermarket stereo.

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I mounted two small enclosures under the dash, each containing Infinity Reference 4" coaxial speakers, firing down toward my knees. They are relatively unseen.

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I then purchased two 6.5" pods for the rear deck so I don't have to cut large holes into to the metal pan underneath. I vinyl covered them and mounted them by using two 4" bolts that enter from the face of the speaker grill and travel all the way through the rear deck.

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I powered the system with a JL Audio HD900/5 amplifier that provides 100w X 4 RMS and 500w X 1 RMS at 4ohm. The four interior speakers are sounding better as I tweak things around and I am satisfied so far with them. My problem is with my subwoofer enclosure. I selected a Kicker L5 Solo-baric in a prefabricated enclosure to place in the trunk. Well... it sounds like crap! My best results so far is to place the enclosure upside down facing the back seat. But that still sounds like crap.

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I am losing all of my mid-bass response and the lower end sounds mushy. When I place the enclosure on my back seat in the passenger compartment, it sounds great. But I will not be doing that on a permanent basis. I am looking for opinions and suggestions for a single 12", 10", or dual 10" or 8" application. I'm trying like hell not to cut up the rear deck (package tray) area for speakers. There is currently one factory hole where a single 6X9 speaker use to be.

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I removed it looking for a subwoofer solution. Look at the following pictures and let me know what you think. Do you think mounting a single 10" speaker from underneath and firing up through the 6X9 hole would sound OK? If I did that, I would seal off the area behind the back seat.

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Or, should I fabricate a baffle to seal off the back seat and mount two 8" speakers firing through the back seat cushions? Please tell me that I don't have to result to cutting a great big F-ing hole into the rear deck to mount my sub!

Please don't be critical of my wiring mess in the trunk. I have not bothered to clean it up or mount any of the hardware permanently yet because of this subwoofer issue. Once I get the sub(s) mounted where it sounds good, then I will clean it all up. Thanks for your help and suggestions.

Terry

 
I agree about the enclosure size but my selection was limited when it was purchased. The problem with building a box to fit under that deck is the area closest to the seat is only 10 inches high and it tapers down to 7 inches closer to the trunk springs that cross over that area. Unless the overall hight is 7 inches, then a custom enclosure will not fit. That is why I have kicked around the idea of creating a baffle to mount to the back of the seat, firing towards the seat... or a single speaker mounted under the deck, firing up through the 6x9 hole. My question should be, how do you think those two options would sound, and which application do you think would sound better? Still trying not to cut large holes.

 
Nice clean car!!

I think you misunderstood what he was saying. He said to design(have someone on here help) an box where the port faces up through the hole, not the sub, that can be further into the back/side of the trunk or whatever

 
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TheMan90241

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